Measurement and Instrumentation The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240×10-6 N-m on full scale. If magnetic flux density is 1Wb/m2 range of meter is 1 mA. 4 mA. 3 mA. 2 mA. 1 mA. 4 mA. 3 mA. 2 mA. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation No eddy current and hysteresis losses occur in Electrostatic instruments Electrodynamo meter instruments PMMC instruments Moving iron instruments Electrostatic instruments Electrodynamo meter instruments PMMC instruments Moving iron instruments ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An average reading digital multimeter reads 10 V when fed a triangular wave, symmetric about the axis. For the same input, an rms reading meter will read 20. 10. 10√3. 20√3. 20. 10. 10√3. 20√3. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following are integrating instruments? Wattmeters Voltmeters Ammeters Ampere hour and watt hour meters Wattmeters Voltmeters Ammeters Ampere hour and watt hour meters ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following statement are correct in case of power factor meter? It consist of two coils mounted at right angles to each other. The deflection is proportional to phase angle between field coil and crossed coil. Both B and C. The restoring torque is provided by a controlling torque. It consist of two coils mounted at right angles to each other. The deflection is proportional to phase angle between field coil and crossed coil. Both B and C. The restoring torque is provided by a controlling torque. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A dynamometer wattmeter can be used for Any of the listed here Both DC and AC AC only DC only Any of the listed here Both DC and AC AC only DC only ANSWER DOWNLOAD EXAMIANS APP
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